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Vapours

About: Vapours is a research topic. Over the lifetime, 1153 publications have been published within this topic receiving 15022 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the growth of inorganic salt particles exposed to both water and organic vapours at 291.15 K was measured in the laboratory, showing that co-condensation of the organic vapour significantly enhances water uptake of aerosols.
Abstract: . Co-condensation of inorganic or organic vapours on growing droplets could significantly enhance both cloud condensation nucleus (CCN) and cloud droplet number concentration, thereby influencing cloud albedo and climate. Until now, there has been very few direct observational evidence of this process. We have measured the growth of inorganic salt particles exposed to both water and organic vapours at 291.15 K in the laboratory, showing that co-condensation of the organic vapours significantly enhances water uptake of aerosols. After exposure to water and propylene glycol vapours, ammonium sulfate particles grew much more than any previously measured particles, inorganic or organic, at the same relative humidity (RH). The maximum equivalent hygroscopicity parameter, κ, was observed to reach up to 2.64, very much higher than values (0.1

6 citations

Journal ArticleDOI
01 Apr 2020-Fuel
TL;DR: In this paper, an experimental setup for accelerated dew point corrosion testing of steels using a concept of bipolar electrochemistry was developed for the first time applied to study corrosion at conditions of condensing vapours of acid on the steel surface.

6 citations

Patent
27 Jul 1989
TL;DR: In this article, the glass surfaces are coated at temperatures between 580°C and 680°C with heated, steam-containing room air which has been admixed with vapours of solvents and of organic compounds of titanium, tin and/or silicon.
Abstract: In order to increase the scratch resistance of glass surfaces and to achieve hydrophobicity, the glass surfaces are coated at temperatures between 580@C and 680@C with heated, steam-containing room air which has been admixed with vapours of solvents and of organic compounds of titanium, tin and/or silicon. The process allows environmentally friendly working without the formation of hydrochloric acid vapours and is also particularly suitable for thin glasses. Apparatuses for carrying out the process are described, including an apparatus for increasing the scratch resistance of curved safety glasses.

6 citations

Journal ArticleDOI
TL;DR: Cornu, Lockyer, and Roberts as mentioned in this paper showed that a very thin layer of vapour was sufficient for the reversal of the lines in the spectra of the following metals in addition to those above mentioned: thallium, lead, silver, aluminum, magnesium, cadmium, zinc, and copper.
Abstract: Since the celebrated paper by Kirchhoff, “On the relation between the radiating and absorbing powers of different bodies for light and heat,\" in which he detailed the remarkable experiments of reversing the lines of lithium and sodium by sunlight and by the vapours of those: metals in the flame of a Bunsen’s burner, and mentioned the reversal of the brighter lines of potassium, calcium, strontium and barium when the deflagration of the chlorates with milk-sugar was used instead of the flame of a Bunsen’s burner, further researches in the same direction have been made by Cornu, Lockyer, and Roberts. The method adopted by Cornu, which had been previously used by Foucault, is one of great ingenuity, dependent upon so arranging the electric arc that the continuous spectrum of the intensely heated poles is examined through an atmosphere of the metallic vapours volatilized around them. By this means Cornu succeeded in reversing several lines in the spectra of the following metals in addition to those above-mentioned, viz., thallium, lead, silver, aluminum, magnesium, cadmium, zinc, and copper. He observed that in general the reversal began with the least refrangible of a group of lines, and gradually extended to the more refrangible lines of the group; and he drew the conclusion that a very thin layer of vapour was sufficient for the reversal. It may be noted that in almost every case the lines seen by him to be reversed were the more highly refrangible of the lines characteristic of each metal, confirming generally the opinion expressed by Stokes in a letter to Lockyer in the Proceedings of the Royal Society for 1876, in which he introduces for the first time the idea of the persistency of different rays with reference to temperature. The method adopted by Lockyer in the first instance was to view the electric arc through the vapours of the metals volatilized in a stream of hydrogen in a horizontal iron tube.

6 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202337
202276
202112
202025
201914
201818